BY using eight eights and addition only can you make 1000?????/

Answers

Answer 1

Answer: If u add 125 times 8 it will equal 1000
becouse
$8*125=1000$
then
$(1000)/(8) =125$
you also can combine it (if this is what are you looking for..)
$888+88+8+8+8=1000$
or any other combination like:
$88+888+8+8+8=1000$
or:
$8+8+888+8+88=1000$

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Find the value of x in the equation 2(x – 3) 5x = 5(2x 6).

Answers

2(x-3)5x = 5(2x6)
2(x-3)5x = 60
2x -6 x 5x = 60
2x -30x = 60
-28x = 60
28x = -60
x = -15/7
Not sure if I'm correct, but hope it helped

F (t) = 2t - 3 f (7)

Answers

Answer:

Step-by-step explanation:

Here the given function, f(t)=2t-3 By substituting t = 7 in the above equation, We get, (7)=2\times 7-3 =14-3 ( By multiplication )

=11 ( By subtraction ) Hence, the value of f(7) is 11 for the given function.

Solve the equation. 33 = p - 6.71
a. 39.71
b. 26.29
c. 39.71
d. 26.29

Answers

33 = p - 6.71

Add 6.71 on both sides

33 + 6.71 = p - 6.71 + 6.71

p = 33 + 6.71

p = 39.71

Your final answer is a. 39.71 and c. 39.71.

answer (c) 39.71

hope it would help

Hi.i need help with this question.

Workings Please.

1. A 210° sector of a circle of radius 10cm is used to make a cone. Find the radius of the base of the cone and it's height.

Answers

Answer: radius = 5.83 cm height = 8.12 cm

Step-by-step explanation:

First, let's find the circumference of the 210° section of the circle.

$C=2\pi r\bigg((\theta)/(360^o)\bigg)\n\n\nC=2\pi(10)\bigg((210^o)/(360^o)\bigg)\n\n\nC=(35)/(3)\pi$

The circumference of the the cone is $(35)/(3)\pi$ . We can use this to find the radius .

$C=2\pi r\n\n(35)/(3)\pi=2\pi r\n\n\n(35\pi)/(3\cdot 2\pi)=r\n\n\n(35)/(6)=r\n\n\n5.83=r$

When you fold the 210° section into a cone, the slant height is the original radius of 10. We can use the radius and slant height of the cone to form a right triangle with the height. Use the Pythagorean Theorem to find the height.

radius² + height² = slant height²

$(35)/(6)^2\ +\ h^2=10^2\n\n\n.\qquad \quad h^2=10^2-\bigg((35)/(6)\bigg)^2\n\n.\qquad \quad h=\sqrt{(6^2(10)^2-35^2)/(6^2)}\n\n\n.\qquad \quad h=\sqrt{(2375)/(36)}\n\n\n.\qquad \quad h=8.12$

Use quadratic regression to find a function that fits the following points. (-2,-16), (3,11), (0,2).

Answers

Answer:

y = -1.2x² +6.6x +2

Step-by-step explanation:

The quadratic regression function of a calculator or spreadsheet can do this for you. The resulting function is ...

y = -1.2x² +6.6x +2

_____

If you want to do this by hand, put the given (x, y) values into the formula ...

ax² +bx +c = y

and solve the resulting system of equations.

The third point tells you c=2, so you can simplify the system of equations to ...

a(-2)² +b(-2) +2 = -16 ⇒ 4a -2b = -18 ⇒ 2a -b = -9

a(3)² +b(3) +2 = 11 ⇒ 9a +3b = 9 ⇒ 3a +b = 3

Adding these equations together gives ...

(2a -b) +(3a +b) = (-9) +(3)

5a = -6 . . . . . . . . simplify

a = -1.2 . . . . . . . divide by 5

b = 3 -3a = 3 -3(-1.2) = 6.6 . . . . from the second equation

Now we know the coefficients are a=-1.2, b=6.6, c=2, so the function is ...

y = -1.2x² +6.6x +2

Solve x2 – 12x + 11 = 0 by completing the square.Question 7 options:

x = –1

No Real Solutions

x = 11 and x = 1

x = 11

Answers

The solution to the quadratic equation x² - 12x + 11 = 0 is x = 11 and x = 1.

What is the solution to the quadratic equation?

Given the quadratic equation in the question:

x² - 12x + 11 = 0

To solve the quadratic equation x² - 12x + 11 = 0 by completing the square, first the constant term to the other side of the equation:

x² - 12x + 11 = 0

x² - 12x + 11 - 11 = 0 - 11

x² - 12x = -11

Next, find the value that is equal to the square of half of b:

( b/2 )² = ( -12/2 )² = (-6)²

Add (-6)² to each side of the equation:

x² - 12x + (-6)² = -11 + (-6)²

x² - 12x + 36 = -11 + 36

x² - 12x + 36 = 25

Factor the perfect trinomial sqaure:

( x - 6 )² = 25

Solve for x:

x - 6 = ±√25

x - 6 = ±5

x = 6 ± 5

Hence, x = 6 - 5 = 1

And x = 6 + 5 = 11.

Therefore, the values of x are 1 and 11.

Learn more about quadratic equations here: brainly.com/question/1863222

#SPJ3

Answer:

Step-by-step explanation:

x^2 – 12x + 11 = 0

(x-11)(x-1)

x= 11, 1 completing the square

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